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For the Inventor, By the Inventor

Yokohama, Japan

Atsugi Unisia Corp.


USPTO Granted Patents = 134

Trademarks = 1

Forward Citations = 2,192

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112 inventors (with patents filed for the assignee):

goldMedal Fumiyuki Yamaoka (25 out of 40 patents)

silverMedal Shinobu Kakizaki (24 out of 36 patents)

bronzeMedal Seiji Suga (17 out of 37 patents)

4.  Makoto Kimura (14 out of 85 patents)

5.  Hiroyuki Shimizu (13 out of 22 patents)

6.  Seinosuke Hara (11 out of 77 patents)

7.  Mitsuo Sasaki (11 out of 32 patents)

8.  Toru Takahashi (10 out of 133 patents)

9.  Shoji Morita (7 out of 26 patents)

10.  Junichi Emura (7 out of 13 patents)

11.  Satoshi Kohno (6 out of 12 patents)

12.  Kimihisa Kasajima (6 out of 7 patents)

13.  Masahiko Hara (5 out of 15 patents)

14.  Miyoko Hamao (5 out of 9 patents)

15.  Issei Kanari (5 out of 9 patents)


Core Competencies:
Suspension Control
Damping Force
Shock Absorber
Variable Damping
Anti-Rolling Control
Hydraulic Damper
Vibration Damper
Acceleration Sensor
Power Train
Brake Control
Valve Timing
Electromagnetic Actuator

134 patents:

1. 5828970 - Suspension control system for automotive vehicle (1998-10-27),
2. 5633461 - Mounting arrangement for acceleration detector element (1997-05-27),
3. 5559701 - Automotive suspension control system for anti-rolling control utilizing (1996-09-24),
4. 5548999 - Mounting arrangement for acceleration detector element (1996-08-27),
5. 5546644 - Method of making an acceleration sensor (1996-08-20),
6. 5526262 - Automotive suspension control system utilizing variable damping force (1996-06-11),
7. 5521821 - Suspension control system for automotive vehicle (1996-05-28),
8. 5490068 - Suspension control system for automotive vehicle including apparatus for (1996-02-06),
9. 5487006 - System for detecting road roughness for suspension control and (1996-01-23),
10. 5465635 - Crankshaft assembly for internal combustion engine (1995-11-14),
11. 5446663 - Apparatus for controlling damping coefficient for vehicular shock (1995-08-29),
12. 5438514 - Apparatus for controlling damping coefficient for vehicular shock (1995-08-01),
13. 5430646 - System and method for controlling damping force coefficient of shock (1995-07-04),
14. 5429384 - Control for shock absorber (1995-07-04),
15. 5415062 - Vibration damper (1995-05-16),
Company Overview
Atsugi Unisia Corp., based in Yokohama, Japan, specializes in advanced automotive suspension control technologies. The company focuses on the development and manufacturing of innovative solutions such as variable damping systems, hydraulic dampers, and anti-rolling control mechanisms. By leveraging expertise in damping force management and vibration dampening, Atsugi Unisia aims to enhance vehicle stability and ride comfort. Their commitment to research and development positions them as a key player in the automotive engineering sector, particularly in suspension systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

134 Patents

#20 in Yokohama

#925 in Japan

#6,022 in the World

Yokohama, JP
Yokohama, Japan

Atsugi Unisia Corp.

Forward Citations = 2,192

112 inventors:

goldMedal Fumiyuki Yamaoka (25 out of 40 patents)

silverMedal Shinobu Kakizaki (24 out of 36 patents)

bronzeMedal Seiji Suga (17 out of 37 patents)

4.  Makoto Kimura (14 out of 85 patents)

5.  Hiroyuki Shimizu (13 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Atsugi Unisia Corp.. Retrieved from https://idiyas.com/company/atsugi-unisia

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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